(0 20 9)(1 18 16)(2 13 7)(3 19 5)(4 10 8)(6 14 12)(11 17 15)
ALLOWS (11/8)-SEQUENCE
1: (2 13 20)

(0 20 7 2 9)(1 18 16)(3 19 5)(4 10 8)(6 14 12)(11 17 15)(13)
2: (0 2 9)

(0)(1 18 16)(2 20 7)(3 19 5)(4 10 8)(6 14 12)(9)(11 17 15)(13)
3: (6 14 12)

(0)(1 18 16)(2 20 7)(3 19 5)(4 10 8)(6)(9)(11 17 15)(12)(13)(14)
4: (4 10 8)

(0)(1 18 16)(2 20 7)(3 19 5)(4)(6)(8)(9)(10)(11 17 15)(12)(13)(14)